Photonic crystal fiber assembly

US10551574B2 · kind B2 · utility

Assignee

• NKT PHOTONICS A/S · DK

Inventors

• Thomas Tanggaard Alkeskjold · Jyllinge, DK
• Jens Kristian Lyngsøe · Hornbæk, DK
• Christian Jakobsen · Frederiksdal, DK
• Martin Dybendal Maack · Jægersborg, DK
• Mattia Michieletto · Copenhagen, DK
• Sidsel Rübner Papior · Jægersborg, DK

Key dates

• Filing date: Dec 22, 2016
• Grant date: Feb 4, 2020
• Expiry date: Dec 22, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/4296
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention comprises a photonic crystal fiber (PCF) assembly comprising a PCF and at least one ferrule structure. The PCF has a center axis and comprises a core region and a cladding region and a first fiber end section with a first fiber end. The ferrule structure has a center axis and is mounted to the first fiber end section. The ferrule structure comprises an inner ferrule arrangement and an outer ferrule arrangement surrounding the first fiber end section. The inner ferrule arrangement comprises an inner ferrule front section proximally to the first fiber end and an inner ferrule rear section distally to the first fiber end, and each of the inner ferrule sections have an inner diameter and in at least a length thereof fully surrounds the PCF. The inner ferrule rear section is anchored in an anchor length section to the first fiber end section and the inner ferrule front section supports the first fiber end section proximally to the first fiber end.